On Wed, 22 Jun 2022 at 17:29, Jae Hyun Yoo <quic_jaeh...@quicinc.com> wrote: > > Add 2-level cascaded I2C MUXes for SOC VR channels into the Firework > machine. > > Signed-off-by: Jae Hyun Yoo <quic_jaeh...@quicinc.com> > --- > hw/arm/aspeed.c | 30 +++++++++++++++++++----------- > 1 file changed, 19 insertions(+), 11 deletions(-) > > diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c > index 526f3b651a9f..866a60cf7b4e 100644 > --- a/hw/arm/aspeed.c > +++ b/hw/arm/aspeed.c > @@ -1038,7 +1038,7 @@ static void qcom_firework_fru_init(I2CBus *bus, uint8_t > addr, uint32_t rsize) > static void qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc) > { > AspeedSoCState *soc = &bmc->soc; > - I2CSlave *mux; > + I2CSlave *therm_mux, *cpuvr_mux; > > /* Create the generic DC-SCM hardware */ > qcom_dc_scm_bmc_i2c_init(bmc); > @@ -1048,16 +1048,24 @@ static void > qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc) > /* I2C4 */ > qcom_firework_fru_init(aspeed_i2c_get_bus(&soc->i2c, 4), 0x50, 128 * > 1024); > > - /* I2C - 8 Thermal Diodes*/ > - mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), > "pca9548", > - 0x70); > - i2c_slave_create_simple(pca954x_i2c_get_bus(mux, 0), TYPE_LM75, 0x4C); > - i2c_slave_create_simple(pca954x_i2c_get_bus(mux, 1), TYPE_LM75, 0x4C); > - i2c_slave_create_simple(pca954x_i2c_get_bus(mux, 2), TYPE_TMP75, 0x48); > - i2c_slave_create_simple(pca954x_i2c_get_bus(mux, 3), TYPE_TMP75, 0x48); > - i2c_slave_create_simple(pca954x_i2c_get_bus(mux, 4), TYPE_TMP75, 0x48); > -
You only just added this. If you modify the previous patch to call the "mux" variable "therm_mux" then you don't need to modify it in this patch. or just squash them both together. I don't think there's much value in having two separate patches. > - /* I2C-9 Fan Controller (MAX31785) */ > + /* I2C7 CPUVR MUX */ > + cpuvr_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), > + "pca9546", 0x70); > + i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 0), "pca9548", > 0x72); > + i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 1), "pca9548", > 0x72); > + i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 2), "pca9548", > 0x72); > + i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 3), "pca9548", > 0x72); > + > + /* I2C8 Thermal Diodes*/ > + therm_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), > + "pca9548", 0x70); > + i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 0), TYPE_LM75, > 0x4C); > + i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 1), TYPE_LM75, > 0x4C); > + i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 2), TYPE_LM75, > 0x48); > + i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 3), TYPE_LM75, > 0x48); > + i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 4), TYPE_LM75, > 0x48); > + > + /* I2C9 Fan Controller (MAX31785) */ > i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", > 0x52); > i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", > 0x54); > } > -- > 2.25.1 >